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Finding the Fourth Proportional to 528,160.41, 728,850.13 and 298,687.47

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Solution

The fourth proportional to 528,160.41, 728,850.13 and 298,687.47 is: 412,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,160.41 : 728,850.13 = 298,687.47 : x
  2. Step 2: Convert to fraction form
    528,160.41/728,850.13 = 298,687.47/x
  3. Step 3: Cross multiply
    528,160.41x = 728,850.13 × 298,687.47
  4. Step 4: Simplify right side
    528,160.41x = 217,698,397,858.96
  5. Step 5: Solve for x
    x = 217,698,397,858.96/528,160.41
  6. Step 6: Final answer
    x = 412,182.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.